'Game of Thrones' season three teased in new behind-the-scenes video

Game of Thrones' third season has been teased in a new behind-the-scenes featurette.

HBO premiered a two-minute video which goes behind the scenes of the fantasy drama on Sunday evening (December 2), ahead of the Boardwalk Empire season finale.

Peter Dinklage, Emilia Clarke, Richard Madden and Maisie Williams are among the cast members who share early thoughts on Game of Thrones' third season during the clip, which shows cast and crew at work in a wide variety of locations.

"The game's been upped; there's so much more danger, so much more risk," said Clarke, who also praised production designer Gemma Jackson and her team for their ability to find and create "natural beauty".

David Benioff is also seen saying that he and Dan Weiss "have been most anticipating [season three] from the very beginning".